These replacement coils are compatible only with KangerTech Single Coil systems. Tank systems are sold with 2 coils, but you'll need to purchase replacements as you continue vaping. The longevity of coils depends totally on the user's habits and frequency of use. Coils are available in 1.5, 1.8, 2.2 and 2.5 ohms.
Coils are priced and sold individually, not in packs of 5.
Replacement coils are available in a variety of resistances, but please be sure you are using the right one for your battery system. You can check out our knowledge base to figure out which coil is best for you and when you should replace your coil. When you install a new coil, it is important to wait 3-5 minutes to ensure the eLiquid absorbs into the cotton and you'll have the best taste possible.